glusterfs.git/rpc/rpc-transport/rdma/src/rdma.h, branch v3.1.0qa34

rpc/rpc-transport: fix frame-loss during rdma-reads.

2010-09-24T14:10:27+00:00

- total no of rdma reads in progress was tracked using refcount of post
    (refcount = total rdma reads + 1). However doing rdma_post_unref _after_
    rdma_do_reads, can result in race condition between execution of
    rdma_post_unref and procedure handling rdma read completion. This makes
    it impossible to find out whether the current rdma read was the last
    rdma-read being done in procedure handling rdma read-completion.
    The fix to this should either do rdma_post_unref before posting an rdma
    read or use another variable to track the number of rdma-reads.
    This patch implements second method.

Signed-off-by: Raghavendra G 
Signed-off-by: Vijay Bellur 

BUG: 1700 (write fops are bailing out on a distribute setup)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1700

rpc-transport/rdma: change the default listening port to 6968.

2010-09-08T09:36:17+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Vijay Bellur 

BUG: 513 (Introduce 0 copy rdma)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=513

Bring in new transport rdma.

2010-08-30T13:54:12+00:00

- rdma is new transport and improvement over current ib-verbs. It uses
   rdma-read and rdma-write for efficiently transferring large buffers.
   For more details please refer to rfc-5666 and rfc-5667.

Signed-off-by: Raghavendra G 
Signed-off-by: Vijay Bellur 

BUG: 513 (Introduce 0 copy rdma)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=513